/****************************************************************************
 *
 * Copyright 2018 Samsung Electronics All Rights Reserved.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND,
 * either express or implied. See the License for the specific
 * language governing permissions and limitations under the License.
 *
 ****************************************************************************/
/**
 * @file
 * Management Information Base II (RFC1213) ICMP objects and functions.
 */

/*
 * Copyright (c) 2006 Axon Digital Design B.V., The Netherlands.
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without modification,
 * are permitted provided that the following conditions are met:
 *
 * 1. Redistributions of source code must retain the above copyright notice,
 *    this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright notice,
 *    this list of conditions and the following disclaimer in the documentation
 *    and/or other materials provided with the distribution.
 * 3. The name of the author may not be used to endorse or promote products
 *    derived from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
 * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
 * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
 * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
 * OF SUCH DAMAGE.
 *
 * Author: Dirk Ziegelmeier <dziegel@gmx.de>
 *         Christiaan Simons <christiaan.simons@axon.tv>
 */

#include "lwip/snmp.h"
#include "lwip/apps/snmp.h"
#include "lwip/apps/snmp_core.h"
#include "lwip/apps/snmp_mib2.h"
#include "lwip/apps/snmp_table.h"
#include "lwip/apps/snmp_scalar.h"
#include "lwip/icmp.h"
#include "lwip/stats.h"

#if LWIP_SNMP && SNMP_LWIP_MIB2 && LWIP_ICMP

#if SNMP_USE_NETCONN
#define SYNC_NODE_NAME(node_name) node_name ## _synced
#define CREATE_LWIP_SYNC_NODE(oid, node_name) \
	static const struct snmp_threadsync_node node_name ## _synced = SNMP_CREATE_THREAD_SYNC_NODE(oid, &node_name.node, &snmp_mib2_lwip_locks);
#else
#define SYNC_NODE_NAME(node_name) node_name
#define CREATE_LWIP_SYNC_NODE(oid, node_name)
#endif

/* --- icmp .1.3.6.1.2.1.5 ----------------------------------------------------- */

static s16_t icmp_get_value(const struct snmp_scalar_array_node_def *node, void *value)
{
	u32_t *uint_ptr = (u32_t *) value;

	switch (node->oid) {
	case 1:					/* icmpInMsgs */
		*uint_ptr = STATS_GET(mib2.icmpinmsgs);
		return sizeof(*uint_ptr);
	case 2:					/* icmpInErrors */
		*uint_ptr = STATS_GET(mib2.icmpinerrors);
		return sizeof(*uint_ptr);
	case 3:					/* icmpInDestUnreachs */
		*uint_ptr = STATS_GET(mib2.icmpindestunreachs);
		return sizeof(*uint_ptr);
	case 4:					/* icmpInTimeExcds */
		*uint_ptr = STATS_GET(mib2.icmpintimeexcds);
		return sizeof(*uint_ptr);
	case 5:					/* icmpInParmProbs */
		*uint_ptr = STATS_GET(mib2.icmpinparmprobs);
		return sizeof(*uint_ptr);
	case 6:					/* icmpInSrcQuenchs */
		*uint_ptr = STATS_GET(mib2.icmpinsrcquenchs);
		return sizeof(*uint_ptr);
	case 7:					/* icmpInRedirects */
		*uint_ptr = STATS_GET(mib2.icmpinredirects);
		return sizeof(*uint_ptr);
	case 8:					/* icmpInEchos */
		*uint_ptr = STATS_GET(mib2.icmpinechos);
		return sizeof(*uint_ptr);
	case 9:					/* icmpInEchoReps */
		*uint_ptr = STATS_GET(mib2.icmpinechoreps);
		return sizeof(*uint_ptr);
	case 10:					/* icmpInTimestamps */
		*uint_ptr = STATS_GET(mib2.icmpintimestamps);
		return sizeof(*uint_ptr);
	case 11:					/* icmpInTimestampReps */
		*uint_ptr = STATS_GET(mib2.icmpintimestampreps);
		return sizeof(*uint_ptr);
	case 12:					/* icmpInAddrMasks */
		*uint_ptr = STATS_GET(mib2.icmpinaddrmasks);
		return sizeof(*uint_ptr);
	case 13:					/* icmpInAddrMaskReps */
		*uint_ptr = STATS_GET(mib2.icmpinaddrmaskreps);
		return sizeof(*uint_ptr);
	case 14:					/* icmpOutMsgs */
		*uint_ptr = STATS_GET(mib2.icmpoutmsgs);
		return sizeof(*uint_ptr);
	case 15:					/* icmpOutErrors */
		*uint_ptr = STATS_GET(mib2.icmpouterrors);
		return sizeof(*uint_ptr);
	case 16:					/* icmpOutDestUnreachs */
		*uint_ptr = STATS_GET(mib2.icmpoutdestunreachs);
		return sizeof(*uint_ptr);
	case 17:					/* icmpOutTimeExcds */
		*uint_ptr = STATS_GET(mib2.icmpouttimeexcds);
		return sizeof(*uint_ptr);
	case 18:					/* icmpOutParmProbs: not supported -> always 0 */
		*uint_ptr = 0;
		return sizeof(*uint_ptr);
	case 19:					/* icmpOutSrcQuenchs: not supported -> always 0 */
		*uint_ptr = 0;
		return sizeof(*uint_ptr);
	case 20:					/* icmpOutRedirects: not supported -> always 0 */
		*uint_ptr = 0;
		return sizeof(*uint_ptr);
	case 21:					/* icmpOutEchos */
		*uint_ptr = STATS_GET(mib2.icmpoutechos);
		return sizeof(*uint_ptr);
	case 22:					/* icmpOutEchoReps */
		*uint_ptr = STATS_GET(mib2.icmpoutechoreps);
		return sizeof(*uint_ptr);
	case 23:					/* icmpOutTimestamps: not supported -> always 0 */
		*uint_ptr = 0;
		return sizeof(*uint_ptr);
	case 24:					/* icmpOutTimestampReps: not supported -> always 0 */
		*uint_ptr = 0;
		return sizeof(*uint_ptr);
	case 25:					/* icmpOutAddrMasks: not supported -> always 0 */
		*uint_ptr = 0;
		return sizeof(*uint_ptr);
	case 26:					/* icmpOutAddrMaskReps: not supported -> always 0 */
		*uint_ptr = 0;
		return sizeof(*uint_ptr);
	default:
		LWIP_DEBUGF(SNMP_MIB_DEBUG, ("icmp_get_value(): unknown id: %" S32_F "\n", node->oid));
		break;
	}

	return 0;
}

static const struct snmp_scalar_array_node_def icmp_nodes[] = {
	{1, SNMP_ASN1_TYPE_COUNTER, SNMP_NODE_INSTANCE_READ_ONLY},
	{2, SNMP_ASN1_TYPE_COUNTER, SNMP_NODE_INSTANCE_READ_ONLY},
	{3, SNMP_ASN1_TYPE_COUNTER, SNMP_NODE_INSTANCE_READ_ONLY},
	{4, SNMP_ASN1_TYPE_COUNTER, SNMP_NODE_INSTANCE_READ_ONLY},
	{5, SNMP_ASN1_TYPE_COUNTER, SNMP_NODE_INSTANCE_READ_ONLY},
	{6, SNMP_ASN1_TYPE_COUNTER, SNMP_NODE_INSTANCE_READ_ONLY},
	{7, SNMP_ASN1_TYPE_COUNTER, SNMP_NODE_INSTANCE_READ_ONLY},
	{8, SNMP_ASN1_TYPE_COUNTER, SNMP_NODE_INSTANCE_READ_ONLY},
	{9, SNMP_ASN1_TYPE_COUNTER, SNMP_NODE_INSTANCE_READ_ONLY},
	{10, SNMP_ASN1_TYPE_COUNTER, SNMP_NODE_INSTANCE_READ_ONLY},
	{11, SNMP_ASN1_TYPE_COUNTER, SNMP_NODE_INSTANCE_READ_ONLY},
	{12, SNMP_ASN1_TYPE_COUNTER, SNMP_NODE_INSTANCE_READ_ONLY},
	{13, SNMP_ASN1_TYPE_COUNTER, SNMP_NODE_INSTANCE_READ_ONLY},
	{14, SNMP_ASN1_TYPE_COUNTER, SNMP_NODE_INSTANCE_READ_ONLY},
	{15, SNMP_ASN1_TYPE_COUNTER, SNMP_NODE_INSTANCE_READ_ONLY},
	{16, SNMP_ASN1_TYPE_COUNTER, SNMP_NODE_INSTANCE_READ_ONLY},
	{17, SNMP_ASN1_TYPE_COUNTER, SNMP_NODE_INSTANCE_READ_ONLY},
	{18, SNMP_ASN1_TYPE_COUNTER, SNMP_NODE_INSTANCE_READ_ONLY},
	{19, SNMP_ASN1_TYPE_COUNTER, SNMP_NODE_INSTANCE_READ_ONLY},
	{20, SNMP_ASN1_TYPE_COUNTER, SNMP_NODE_INSTANCE_READ_ONLY},
	{21, SNMP_ASN1_TYPE_COUNTER, SNMP_NODE_INSTANCE_READ_ONLY},
	{22, SNMP_ASN1_TYPE_COUNTER, SNMP_NODE_INSTANCE_READ_ONLY},
	{23, SNMP_ASN1_TYPE_COUNTER, SNMP_NODE_INSTANCE_READ_ONLY},
	{24, SNMP_ASN1_TYPE_COUNTER, SNMP_NODE_INSTANCE_READ_ONLY},
	{25, SNMP_ASN1_TYPE_COUNTER, SNMP_NODE_INSTANCE_READ_ONLY},
	{26, SNMP_ASN1_TYPE_COUNTER, SNMP_NODE_INSTANCE_READ_ONLY}
};

const struct snmp_scalar_array_node snmp_mib2_icmp_root = SNMP_SCALAR_CREATE_ARRAY_NODE(5, icmp_nodes, icmp_get_value, NULL, NULL);

#endif							/* LWIP_SNMP && SNMP_LWIP_MIB2 && LWIP_ICMP */
